Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
951-566 9 Sun City CA   730   2002-12-12   
951-571 9 Moreno CA   730   2003-09-23   
951-572 1 Banning CA   730   2006-04-06   
951-588 A Arlington CA IRVNCASM1MD  730      
951-588 0 Arlington CA   730      
951-588 2 Arlington CA   730      
951-667 4 Temescal Canyon CA   730   2003-08-20   
951-703 4 Mira Loma CA   730   2011-11-11   
951-710 1 Arlington CA   730   2001-11-26   
951-710 3 Arlington CA   730   2006-04-21   
951-723 3 Sun City CA   730   2012-01-09   
951-727 9 Mira Loma CA   730   2001-12-31   
951-744 3 Hemet: Anza DA CA   730   2006-04-09   
951-749 A Mira Loma CA IRVNCASM1MD  730      
951-749 0 Mira Loma CA   730      
951-758 4 Riverside CA   730   2017-09-29   
951-758 7 Riverside CA   730   2017-11-02   
951-760 7 Temecula CA   730   2004-09-27   
951-776 5 Woodcrest CA   730   2001-12-31   
951-790 5 Mira Loma CA   730   2014-04-12   
951-791 9 Hemet: Hemet DA CA   730   2005-12-05   
951-823 8 Riverside CA   730   2006-11-10   
951-834 9 Murrieta CA   730   2002-07-24   
951-837 2 Murrieta CA   730   2004-11-22   
951-846 8 Banning CA   730   2008-09-04   
951-867 5 Moreno CA   730   2005-10-31   
951-894 A Murrieta CA IRVNCASM1MD  730      
951-894 0 Murrieta CA   730      
951-916 A Lakeview-Nuevo CA IRVNCASM1MD  730      
951-916 5 Lakeview-Nuevo CA   730   2002-11-12   
951-934 4 Mira Loma CA   730   2007-03-14   
951-973 7 Murrieta CA   730   2006-04-07   
959-280 A Hartford CT   920   2026-03-24   
959-280 7 Hartford CT   920   2026-03-24   
959-280 8 Hartford CT   920   2026-03-24   
972-210 A Terrell TX DLLSTXHW6MD  552      
972-210 4 Terrell TX   552   2003-04-19   
972-325 3 Seagoville TX   552   2007-07-21   
972-354 A Dallas TX DLLSTXHW6MD  552      
972-357 2 Forney TX   552   2010-12-23   
972-469 A Frisco TX DLLSTXHW6MD  552      
972-469 8 Frisco TX   552   2016-08-25   
972-637 1 Cedar Hill TX   552   2007-07-13   
972-734 7 Princeton EMS TX   552   2010-12-23   
972-782 0 Farmersville TX   552   2010-12-23   
972-893 6 Irving TX   552   2010-04-01   
972-893 8 Irving TX   552   2007-12-01   
972-993 A Dallas TX DLLSTXHW6MD  552      
975-207 A Kansas City MO   524   2026-03-27   
975-207 5 Kansas City MO   524   2026-03-27   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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